Apparatus

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sensors Mode-S transponder

AB7B02

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N839NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AB7B02
Octal
52675402
Decimal
11,238,146
Country
US
Tail
N839NN
Type
B738
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
552
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S AB7B02.

Country allocation

The ICAO 24-bit address AB7B02 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
AAL1998 - 7 2026-07-13
AAL1089 American Airlines 7 2026-07-25
AAL2337 American Airlines 6 2026-07-24
AAL1409 - 6 2026-07-10
AAL2515 American Airlines 5 2026-04-13
AAL1111 American Airlines 5 2026-05-18
AAL1027 American Airlines 5 2026-04-29
AAL850 American Airlines 4 2026-05-30
AAL814 - 4 2026-06-28
AAL486 - 4 2026-04-15
AAL393 - 4 2026-07-11
AAL1958 American Airlines 4 2026-07-20
AAL1438 - 4 2026-07-13
AAL1255 - 4 2026-07-20
AAL1042 - 4 2026-07-05
AAL828 - 3 2026-06-16
AAL775 American Airlines 3 2026-07-18
AAL756 American Airlines 3 2026-07-18
AAL463 American Airlines 3 2026-05-30
AAL374 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1821 CLT → MKE Jul 26, 21:00 UTCJul 26, 22:25 UTC1h 25m
2026-07-26 AAL1006 JFK → MIA Jul 26, 16:35 UTCJul 26, 18:55 UTC2h 20m
2026-07-26 AAL1603 EWR → DFW Jul 26, 12:45 UTCJul 26, 15:00 UTC2h 15m
2026-07-25 AAL1089 OMA → CLT Jul 25, 20:15 UTCJul 25, 23:30 UTC3h 15m
2026-07-25 AAL1089 OMA → CLT Jul 25, 20:10 UTCJul 25, 23:30 UTC3h 20m
2026-07-25 AAL1089 OMA → CLT Jul 25, 15:40 UTCJul 25, 19:00 UTC3h 20m
2026-07-25 AAL2696 HAV → MIA Jul 25, 12:40 UTCJul 25, 13:15 UTC35m
2026-07-25 AAL2699 MIA → HAV Jul 25, 10:05 UTCJul 25, 10:40 UTC35m
2026-07-25 AAL2699 MIA → HAV Jul 25, 10:04 UTCJul 25, 11:00 UTC56m
2026-07-25 AAL1596 BNA → PHL Jul 25, 03:30 UTCJul 25, 05:00 UTC1h 30m
2026-07-25 AAL1596 BNA → PHL Jul 25, 03:27 UTCJul 25, 05:00 UTC1h 33m
2026-07-24 AAL3131 DFW → DTW Jul 24, 23:45 UTCJul 25, 01:15 UTC1h 30m
2026-07-24 AAL3131 DFW → DTW Jul 24, 23:41 UTCJul 25, 01:14 UTC1h 33m
2026-07-24 AAL871 MIA → RTB Jul 24, 16:35 UTCJul 24, 21:20 UTC4h 45m
2026-07-24 AAL1591 RDU → LGA Jul 24, 13:10 UTCJul 24, 15:00 UTC1h 50m
2026-07-24 AAL1472 RDU → LGA Jul 24, 04:20 UTCJul 24, 05:30 UTC1h 10m
2026-07-24 AAL2337 CMH → DFW Jul 24, 00:20 UTCJul 24, 02:30 UTC2h 10m
2026-07-23 AAL2337 CMH → DFW Jul 23, 21:00 UTCJul 23, 23:00 UTC2h 0m
2026-07-23 AAL1158 DCA → DFW Jul 23, 00:00 UTCJul 23, 02:40 UTC2h 40m
2026-07-22 AAL2769 PHX → MCO Jul 22, 20:15 UTCJul 22, 21:30 UTC1h 15m
2026-07-22 AAL2769 PHX → MCO Jul 22, 20:12 UTCJul 22, 21:31 UTC1h 19m
2026-07-22 AAL2433 PHL → SJU Jul 22, 15:40 UTCJul 22, 18:15 UTC2h 35m
2026-07-22 AAL2433 PHL → SJU Jul 22, 12:05 UTCJul 22, 14:25 UTC2h 20m
2026-07-21 AAL650 RDU → LGA Jul 21, 22:50 UTCJul 22, 03:20 UTC4h 30m
2026-07-21 AAL650 RDU → LGA Jul 21, 17:15 UTCJul 21, 21:20 UTC4h 5m
2026-07-21 AAL598 MSY → MIA Jul 21, 11:50 UTCJul 21, 15:35 UTC3h 45m
2026-07-20 AAL1255 PHX → IND Jul 20, 22:35 UTCJul 21, 01:40 UTC3h 4m
2026-07-20 AAL1255 PHX → IND Jul 20, 22:32 UTCJul 21, 01:38 UTC3h 6m
2026-07-20 AAL1831 PBI → ORD Jul 20, 20:05 UTCJul 20, 21:20 UTC1h 15m
2026-07-20 AAL1831 PBI → ORD Jul 20, 19:58 UTCJul 20, 21:15 UTC1h 17m
2026-07-20 AAL1831 PBI → ORD Jul 20, 17:45 UTCJul 20, 18:50 UTC1h 5m
2026-07-20 AAL1958 MIA → SFO Jul 20, 12:10 UTCJul 20, 15:35 UTC3h 25m
2026-07-19 AAL1156 PHX → CMH Jul 19, 23:10 UTCJul 20, 02:40 UTC3h 30m
2026-07-19 AAL2630 - Jul 19, 20:15 UTCJul 19, 21:50 UTC1h 35m
2026-07-19 AAL2630 PHX → SMF Jul 19, 17:40 UTCJul 19, 19:10 UTC1h 30m
2026-07-19 AAL653 BOS → CLT Jul 19, 11:50 UTCJul 19, 15:25 UTC3h 35m
2026-07-18 AAL2871 SNA → DFW Jul 18, 23:00 UTCJul 19, 02:45 UTC3h 45m
2026-07-18 AAL1466 LAS → PHX Jul 18, 20:20 UTCJul 18, 21:10 UTC50m
2026-07-18 AAL2010 - Jul 18, 13:35 UTCJul 18, 18:05 UTC4h 30m
2026-07-18 AAL756 PHL → SFO Jul 18, 10:10 UTCJul 18, 12:05 UTC1h 55m
2026-07-18 AAL775 MIA → BOS Jul 18, 02:00 UTCJul 18, 03:50 UTC1h 51m
2026-07-17 AAL1089 OMA → CLT Jul 17, 21:10 UTCJul 17, 23:35 UTC2h 25m
2026-07-17 AAL1089 OMA → CLT Jul 17, 20:20 UTCJul 17, 20:29 UTC10m
2026-07-17 AAL1089 OMA → CLT Jul 17, 20:13 UTCJul 17, 23:32 UTC3h 19m
2026-07-17 AAL1089 OMA → CLT Jul 17, 15:35 UTCJul 17, 18:55 UTC3h 20m
2026-07-17 AAL2696 HAV → MIA Jul 17, 12:40 UTCJul 17, 13:15 UTC35m
2026-07-17 AAL2696 HAV → MIA Jul 17, 12:25 UTCJul 17, 13:14 UTC49m
2026-07-17 AAL2699 MIA → HAV Jul 17, 10:10 UTCJul 17, 10:40 UTC30m
2026-07-17 AAL1181 - Jul 17, 00:25 UTCJul 17, 02:39 UTC2h 15m
2026-07-16 AAL903 ORD → DCA Jul 16, 13:49 UTCJul 16, 22:05 UTC8h 15m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N839NN page for operator, model, and routing details .

Mode-S AB7B02 frequently asked

What is Mode-S code AB7B02?
AB7B02 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N839NN.
Where is Mode-S AB7B02 registered?
Mode-S code AB7B02 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AB7B02 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7B02, octal 52675402, decimal 11,238,146.
What flights does AB7B02 operate?
Mode-S AB7B02 has broadcast 20 distinct callsigns, including AAL1998, AAL1089, AAL2337, AAL1409, AAL2515.